Monitor



FIG. 1 is a top front perspective view of a monitor showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left-side elevational view thereof a right side elevational view is symmetrical to the left side elevational view;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a monitor, as shown and described. 